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Pavlova-9 [17]
3 years ago
15

3x(5 – x) I don't even know

Mathematics
1 answer:
goblinko [34]3 years ago
4 0

Answer:

7

Step-by-step explanation:

You might be interested in
Show your work. -2.5(4x -4) = -6
serg [7]

Answer:

x = 1 3/5

Step-by-step explanation:

distribute.

-2.5*4x + (-2.5*-4) = -6

-10x +10 = -6

subtract 10 on both sides

-10x = -6 -10

divide by -10

x = -16/-10

x = 1 3/5

7 0
2 years ago
You deposit $7,900 in a money-market account that pays an annual interest rate of 4.3%. The interest is compounded quarterly. Ho
aivan3 [116]
A=7,900×(1+0.043÷4)^(4×3)
A=8,981.57
5 0
4 years ago
Please help will give brainlist!​
Yuki888 [10]

Answer:

b=\frac{1}{6}

Step-by-step explanation:

In f(x)=a\cos(b(x-c))+d, b represents a constant related to the period of the function. Here's how it's related:

b=\frac{2\pi}{T}, where T is the period of the function.

We're given T=12\pi, so solving for b:

b=\frac{2\pi}{12\pi}=\boxed{\frac{1}{6}}

4 0
3 years ago
4. The system of equations 3x – 6y = 20 and 2x – 4y = 3 is
expeople1 [14]
3x - 6y = 20
-6y = -3x + 20
y = 1/2x - 20/6.....slope = 1/2...y int = -20/6 = -10/3

2x - 4y = 3
-4y = -2x + 3
y = 1/2x - 3/4..slope = 1/2...y int = -3/4

same slope, different y int = parallel lines = no solution = inconsistent
6 0
4 years ago
Read 2 more answers
Which proportions show that the triangles are not similar?
jasenka [17]

Answer:

AC and DF

Step-by-step explanation:

We can see that the triangles have a scale factor of 3.

1 * 3 = 3 (AB and DE)

2 * 3 = 6 (BC and EF)

However...

2 * 3 = 6 not 7 (AC and DF)

3 0
3 years ago
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